He met many problems ______ he was going over his lessons.
#58104
A
before
B
as soon as
C
since
D
while
推荐题目
My grandpa is _________ weak ______ look after himself．He needs help．
#56165
A
so, that
B
very, to
C
so, to
D
too, to
——Can I eat the cake，Mum?——Yes，you can．_________you must wash your hands first．
#56777
A
But
B
So
C
Or
D
After
—_________ is your sister? — The girl on the right wearing blue jeans.
#55822
A
Where
B
Whose
C
What
D
Which
–How do you like the two pairs of shoes?--They don’t fit me well. They are ______ too big _____ too small.
#56871
A
not only; but also
B
both; and
C
neither ; nor
D
either ; or